Khalid ibn Dihqan said: When we were engaged in the battle of Constantinople at Dhuluqiyyah, a man of the people of Palestine, who was one of their nobility and elite and whose rank was known to them, came forward. He was called Hani ibn Kulthum ibn Sharik al-Kinani. He greeted Abdullah ibn Zakariyya who knew his rank. Khalid said to us: Abdullah ibn AbuZakariyya told us: I heard Umm ad-Darda' say: I heard AbudDarda' say: I heard the Messenger of Allah ﷺ say: It is hoped that Allah may forgive every sin, except in the case of one who dies a polytheist, or one who purposely kills a believer. Hani ibn Kulthum ar-Rabi' then said: I heard Mahmud ibn ar-Rabi' transmitting a tradition from Ubadah ibn as-Samit who transmitted from the Messenger of Allah ﷺ who said: If a man kills a believer unjustly, Allah will not accept any action or duty of his, obligatory or supererogatory. Khalid then said to us: Ibn AbuZakariyya transmitted a tradition to us from Umm ad-Darda' on the authority of AbudDarda' from the Messenger of Allah ﷺ who said: A believer will continue to go on quickly and well so long as he does not shed unlawful blood; when he sheds unlawful blood, he becomes slow and heavy-footed. A similar tradition has been transmitted by Hani ibn Kulthum from Mahmud ibn ar-Rabi' on the authority of Ubadah ibn as-Samit from the Messenger of Allah ﷺ.  

كُنَّا فِي غَزْوَةِ الْقُسْطَنْطِينِيَّةِ بِذُلُقْيَةَ فَأَقْبَلَ رَجُلٌ مِنْ أَهْلِ فِلَسْطِينَ مِنْ أَشْرَافِهِمْ وَخِيَارِهِمْ يَعْرِفُونَ ذَلِكَ لَهُ يُقَالُ لَهُ هَانِئُ بْنُ كُلْثُومِ بْنِ شَرِيكٍ الْكِنَانِيُّ فَسَلَّمَ عَلَى عَبْدِ اللَّهِ بْنِ أَبِي زَكَرِيَّا وَكَانَ يَعْرِفُ لَهُ حَقَّهُ قَالَ لَنَا خَالِدٌ فَحَدَّثَنَا عَبْدُ اللَّهِ بْنُ أَبِي زَكَرِيَّا قَالَ سَمِعْتُ أُمَّ الدَّرْدَاءِ تَقُولُ سَمِعْتُ أَبَا الدَّرْدَاءِ يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ كُلُّ ذَنْبٍ عَسَى اللَّهُ أَنْ يَغْفِرَهُ إِلاَّ مَنْ مَاتَ مُشْرِكًا أَوْ مُؤْمِنٌ قَتَلَ مُؤْمِنًا مُتَعَمِّدًا فَقَالَ هَانِئُ بْنُ كُلْثُومٍ سَمِعْتُ مَحْمُودَ بْنَ الرَّبِيعِ يُحَدِّثُ عَنْ عُبَادَةَ بْنِ الصَّامِتِ أَنَّهُ سَمِعَهُ يُحَدِّثُ عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ قَالَ مَنْ قَتَلَ مُؤْمِنًا فَاعْتَبَطَ بِقَتْلِهِ لَمْ يَقْبَلِ اللَّهُ مِنْهُ صَرْفًا وَلاَ عَدْلاً قَالَ لَنَا خَالِدٌ ثُمَّ حَدَّثَنِي ابْنُ أَبِي زَكَرِيَّا عَنْ أُمِّ الدَّرْدَاءِ عَنْ أَبِي الدَّرْدَاءِ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَزَالُ الْمُؤْمِنُ مُعْنِقًا صَالِحًا مَا لَمْ يُصِبْ دَمًا حَرَامًا فَإِذَا أَصَابَ دَمًا حَرَامًا بَلَّحَ وَحَدَّثَ هَانِئُ بْنُ كُلْثُومٍ عَنْ مَحْمُودِ بْنِ الرَّبِيعِ عَنْ عُبَادَةَ بْنِ الصَّامِتِ عَنْ رَسُولِ اللَّهِ ﷺ مِثْلَهُ سَوَاءً